Occurrence, distribution and estimated intake of mercury and selenium from sclerotia of the medicinal fungus Wolfiporia cocos from China

Jerzy Falandysz , Martyna Saba , Ji Zhang , Anetta Hanć

Abstract

The contamination and distribution of mercury and selenium in the Chinese medicinal fungus Wolfiporia cocos was investigated. The sclerotial mercury concentrations ranged from 0.0043 to 0.027 mg kg1 dry biomass (db) in the inner white part and 0.019–0.074 mg kg−1 db in the shell (outer part), while selenium concentrations ranged from < 0.00048 to 0.0040 mg kg−1 db (white) and 0.0034–0.038 mg kg−1 db (shell). Positive correlations were found for mercury, as well as for mercury and selenium but they were not consistent for both morphological parts. Mercury concentrations exceeded selenium in 16 of 17 white part pools (molar quotient 0.53 to > 10) and in 11 of 17 shell pools (quotient 0.37 to 3.2). The estimated maximal exposure to mercury contained in sclerotial products based on 45 g per capita daily intake for a 60 kg individual over one week, was 0.000020 mg kg−1 body mass (bm; white) and 0.000055 mg kg−1 bm (shell) on a daily basis, and 0.00014 mg kg−1 bm (white) and 0.00039 mg kg−1 bm (shell) on a weekly basis. Relative to mercury, the corresponding intake rates of selenium were considered very low, i.e., they averaged on a daily basis at 0.00075 μg kg−1 bm (white) and 0.0097 μg kg−1 bm (shell) with maximum intake at 0.0030 μg kg−1 bm (white) and 0.028 μg kg−1 bm (shell).
Author Jerzy Falandysz (FCh / DEChR / LEChE)
Jerzy Falandysz,,
- Laboratory of Environmental Chemistry and Ecotoxicology
, Martyna Saba (FCh / DEChR / PTiOR)
Martyna Saba,,
- Pracownia Toksykologii i Ochrony Radiologicznej
, Ji Zhang
Ji Zhang,,
-
, Anetta Hanć
Anetta Hanć,,
-
Journal seriesChemosphere, ISSN 0045-6535, e-ISSN 1879-1298, (N/A 100 pkt)
Issue year2020
Vol247
Pages1-6
Publication size in sheets0.5
Article number125928
Keywords in EnglishTraditional herbal medicine, foods, fungi, organic food, wild food, wild medicine
ASJC Classification2700 General Medicine; 1600 General Chemistry; 2304 Environmental Chemistry
DOIDOI:10.1016/j.chemosphere.2020.125928
Languageen angielski
Score (nominal)100
Score sourcejournalList
ScoreMinisterial score = 100.0, 28-03-2020, ArticleFromJournal
Publication indicators Scopus SNIP (Source Normalised Impact per Paper): 2018 = 1.54; WoS Impact Factor: 2018 = 5.108 (2) - 2018=5.089 (5)
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